High-Torque Brushless Motor

Rapid acceleration and high torque are key features of the AHTR stage. Users can command rapid incremental or continuous rotary motion with the high-torque, direct-drive, brushless motor. With the direct-drive motor and precision structural design, the AHTR enables high-bandwidth motion for contouring or point-to-point positioning. It is the ideal rotary stage for motion simulation, laser steering applications, electro-optic sensor testing, resolver or optical encoder accuracy testing, antenna testing, and inertial navigation device testing where high-payloads are required.

To maximize stage lifetime, the AHTR series uses brushless motors. This motor design has the advantage of low-maintenance coupled with high acceleration and accurate positioning performance.

High Payload Capacity and Large Moment-Load Stiffness

The AHTR is designed with a large payload capacity and high moment stiffness to handle a variety of applications and unique payload mounting arrangements. Payloads up to 475 kg and moment loads up to 1600 N·m can easily be handled by the large angular contact bearings and structural design of this rotary stage.

Flexible Design Options

The AHTR is available with a variety of options and configurations. Incremental or absolute optical encoders are available as well as a variety of tabletop mounting configurations and limited travel designs.

Specifications

AHTR Specifications

Mechanical Specifications

AHTR400

Travel

Continuous (limited travel optional)

Accuracy(1)

Standard

±97 μrad (±20 arc sec)

HALAR

±9.7 μrad (±2 arc sec)

Bidirectional Repeatability(1)

±2.4 μrad (±0.5 arc sec)

Tilt Error Motion

14.6 μrad (3 arc sec)

Maximum Speed(2)

300 rpm

Maximum Acceleration (Unloaded)(2)

500 rad/s2

Maximum Torque (Continuous)

143 N·m

Load Capacity

Axial

475 kg

Radial

475 kg

Moment

1600 N·m

Stage Mass

90 kg

Notes:

Certified with every stage.

Requires the selection of an appropriate amplifier with sufficient voltage and current